# Add and subtract polynomials

Lesson 1 of 12

## Objective: SWBAT add and subtract polynomials.

## Big Idea: Clean up the house! Use the concept of organizing items in a cluttered home to collecting like terms while adding and subtracting polynomials.

*75 minutes*

#### Warm-up

*10 min*

Each day, students complete a Warmup that usually consists of spiraling the previous day's material, in addition to older material. Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in watch my Lesson Structure video.

In today's warm-up, I wanted to re-focus on standards that are outside of the 8th grade common core, but part of the Algebra I standards - and so these tasks are meant to be quick refreshers on some algebraic work - properties, using algebra to represent a context, using an equation to describe a line. They are also meant to be confidence-boosting as we re-enter the world of preparing the kids for high school algebra.

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#### Homework

*15 min*

HW138 Add and subtract polynomials provides the students with the opportunity to practice the skills covered in class today and check their work using the answers provided.

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- UNIT 1: FLUENCIES AND THE LANGUAGE OF ALGEBRA
- UNIT 2: SOLVING LINEAR EQUATIONS
- UNIT 3: INTRODUCTION TO FUNCTIONS
- UNIT 4: INTERPRETING AND COMPARING LINEAR FUNCTIONS
- UNIT 5: SYSTEMS OF LINEAR EQUATIONS
- UNIT 6: EXPONENTS AND SCIENTIFIC NOTATION
- UNIT 7: PARALLEL LINES, TRANSVERSALS, AND TRIANGLES
- UNIT 8: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
- UNIT 9: PATTERNS OF ASSOCIATION IN BIVARIATE DATA
- UNIT 10: SLOPE REVISITED
- UNIT 11: VOLUME OF CYLINDERS, CONES, AND SPHERES
- UNIT 12: POLYNOMIALS AND FACTORING
- UNIT 13: QUADRATIC FUNCTIONS

- LESSON 1: Add and subtract polynomials
- LESSON 2: Multiply monomials
- LESSON 3: Divide monomials
- LESSON 4: Multiply more polynomials
- LESSON 5: Special products involving polynomials
- LESSON 6: Factoring Polynomials 1
- LESSON 7: Factoring Polynomials 2 + take-home assessment
- LESSON 8: Factoring Trinomials with lead coefficient of 1
- LESSON 9: Factoring trinomials GFC first
- LESSON 10: Factoring difference of perfect squares
- LESSON 11: Factoring practice
- LESSON 12: Assessment #18 - Factoring